petitio principii


pe·ti·tio prin·ci·pii

noun \pə-ˈtē-tē-ˌō-(ˌ)priŋ-ˈki-pē-ˌē\

Definition of PETITIO PRINCIPII

:  a logical fallacy in which a premise is assumed to be true without warrant or in which what is to be proved is implicitly taken for granted

Origin of PETITIO PRINCIPII

Medieval Latin, literally, postulation of the beginning, begging the question
First Known Use: circa 1531

Browse

Next Word in the Dictionary: petit juror
Previous Word in the Dictionary: petition of right
All Words Near: petitio principii

Seen & Heard

What made you want to look up petitio principii? Please tell us where you read or heard it (including the quote, if possible).

Get Our Free Apps
Voice Search, Favorites,
Word of the Day, and More
Join Us on FB & Twitter
Get the Word of the Day and More